[gdal-dev] WCS driver

[Ari Jolma]

jratike80 kirjoitti 28.10.2017 klo 13:10:
> Ari Jolma-2 wrote
>> The case of GeoServer is also strange
>> https://msp.smartsea.fmi.fi/geoserver/wcs?SERVICE=WCS&VERSION=1.1.1&REQUEST=GetCoverage&IDENTIFIER=smartsea%3Aeusm2016&FORMAT=image%2Ftiff&BOUNDINGBOX=61610,7303970,61630,7303990,urn:ogc:def:crs:EPSG::3067&RangeSubset=contents
>>
>> -- GeoServer does not seem to understand that GDAL wants only a 2 x 2
>> sample - the response is huge (the whole geotiff?).
>>
>> Ari
>
> An open Geoserver with a DEM of Finland is available for testing at
> http://avoindata.maanmittauslaitos.fi/geoserver/wcs?service=WCS&version=2.0.1&request=GetCapabilities

Same thing with this server (I'm still testing with version 1.1), except 
that it is nice enough to let me know that

ERROR 1: This request is trying to generate too much data, the limit is 
488.28MB but the actual amount of bytes to be written in the output is 
18479MB

With the help of GeoServer demo tool in its admin panel, it seems 
necessary to add GridCRS to the request

http://avoindata.maanmittauslaitos.fi/geoserver/wcs?SERVICE=WCS&VERSION=1.1.0&REQUEST=GetCoverage&IDENTIFIER=korkeusmalli_10m%3Akorkeusmalli_10m&FORMAT=image%2Ftiff&BOUNDINGBOX=44005,7781985,44015,7781995,urn:ogc:def:crs:EPSG::3067&RangeSubset=contents&GridBaseCRS=urn:ogc:def:crs:EPSG::3067&GridType=urn:ogc:def:method:WCS:1.1:2dSimpleGrid&GridOffsets=20.0,-20.0&GridCS=urn:ogc:def:cs:OGC:0.0:Grid2dSquareCS

GridCRS should be optional but in practise GeoServer seems to require it.

Ari

>
> -Jukka Rahkonen-
>
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